Baryon interactions from lattice QCD with physical quark masses - Nuclear forces and ΞΞ forces

Takumi Doi, Takumi Iritani, Sinya Aoki, Shinya Gongyo, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Noriyoshi Ishii, Takaya Miyamoto, Hidekatsu Nemura, Kenji Sasaki

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Abstract

We present the latest lattice QCD results for baryon interactions obtained at nearly physical quark masses. Nf = 2 + 1 nonperturbatively O(a)-improved Wilson quark action with stout smearing and Iwasaki gauge action are employed on the lattice of (96a)4 ? (8.1fm)4 with a-1 ? 2.3 GeV, where mπ ? 146 MeV and mK ? 525 MeV. In this report, we study the two-nucleon systems and two-Ξ systems in 1S0 channel and 3S1-3D1 coupled channel, and extract central and tensor interactions by the HAL QCD method. We also present the results for the N? interaction in 5S2 channel which is relevant to the N? pair-momentum correlation in heavy-ion collision experiments.

Original languageEnglish
Article number05009
JournalEPJ Web of Conferences
Volume175
DOIs
Publication statusPublished - Mar 26 2018
Event35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain
Duration: Jun 18 2017Jun 24 2017

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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